Cultivator-standard.



'PATBNTED MAR. ze, 1907'.

l J. B. MBBRI'LL. GULTIVA'TGR STANDARD.

APPLICATION FILED NOV. 20. 1906.

v A Trop/VE VS Unir STATES PATENT FFTCE.

CULTlVATOR-STANDARD.

Specification of Letters Patent.

Patented March 2e, 1907.

Application filed November 20, 1906. Serial No. 344,291.

T0 ir/ZZ whom t may concern:

Be it known that I, JOHN ELIJAH MER- BILL, a citizen of the UnitedStates, residing at Garland, in the county of Dallas and State of Texas,have invented a new and useful Cultivator-Standard, of which thefollowing is a specification.

This invention has relation to spring-jointed standards for cultivators;and it consists in the novel construction and arrangement of its parts,as hereinafter shown and described.

The object of the invention is to provide a standard of the natureindicated which is adapted to swing and give when the shovel comes inContact with tough roots or other obstructions, whereby the implement towhich the standard is attached will ride over the obstruction withoutexcessively shocking or jarring the draft-animals or the hand. Means isprovided for adjusting the tension of the spring operating upon thejointed parts; also, means is provided for raising or lowering thecul'tivator-shovel and for canting the same axially with relation to theline of draft.

The standard consists of the special construction, as will behereinafter pointed out.

In the accompanying drawing, `iiigure 1 is a side elevation of thestandard with parts in section. ldig. 2 is a rear elevation of the samewith parts in section. li ig. 3 is a transverse sectional view cut onthe line 33 of Fig. 1, and Fig. 4 is a sectional view cut on the line 44 of Fig. 1.

The standard comprises the shin 1, to the lower end of which is pivotedthe foot 2. Said foot is provided at its lower end with thehorizontally-elongated slots 3 3 and in its forward portion with aconcaved channel 4. The block 5 fits in the channel 4 and bears againstthe rear surface of the cultivatorpoint 6. The rear portion of theplow-foot 1 in the vicinity of the slots 3 is provided with thevertically-disposed serrations or corrugations 7. The bolts 3 passthrough the plowpoints 6, block 5, and slots 3 and are provided withwashers 9, the inner faces of which are serrated or corrugated and whichengage the serrated surfaces 7, provided upon the foot 2. The nuts 10are screw-threaded upon the bolts 8. By reason of the horizontaldisposition of the slots 3 it is obvious that the cultivator-point 6 maybe adjusted axially with relation to the line of draft. The upperportion of the foot 2 is bifurcated, and the lower end of the shin 1 ispivoted between said bifurcations at the point 11. Each bifurcation ofthe upper end of the foot 2 is provided with an arcuate slot 12, and thebolt 13 passes through said slots 12 12 and a registering perforationprovided in the shin 1. The wedge-shaped block 14 is located within theupper portion of the bifurcationof the foot 2 and bears against the rearedge of the shin 1. The said block 14 is provided with an elongated slot15, which receives the cross-bolt 16, which in turn extends from onebifurcation to the other. The said block 14 is a trifle thicker in atransverse direction than the shin 1, and consequently when the nut istightened upon the bolt 13 the upper ends of the foot 2 will grip theblock 14. Thus it will be seen that the parts will be positively held inposition when once adjusted.

The upper portion of the shin 1 vis provided with a series ofperforations 17 for the vertical adjustment of the said shin, as will behereinafter explained. The knee 18 comprises two members 19 and 2 0,which.. are jointed together. The member 19 is provided on o ne sidewith an annular cup 21, in

which an annular end 22 of the member 20 is concentrically pivoted uponthe bolt 23. The member 19 is provided with a verticallydisposed slot24, which receives thc upper end of the shin 1, and the plate 25 isbolted or otherwise secured over the face of the member 19, providedwith the slot 24. The rear edge of the plate 25 is provided with thegearteeth 26, and the said plate is also provided with avertically-disposed opening 27, which registers with the slot 24 in themember 19. The hand-lever 23 is fulcrunied at one end to the plate 25and is provided with a lateral projection 29, which operates in theopening 27 of the plate 25. The pin 30 passes transversely through thelever 23 and projection 29 and one of the pcrforations 17 of the shin l.Said lever 25 is provided with a springactuated pawl 31, which isadapted to engage the teeth 26.

From the above description it will be seen that a lever-operated meansfor adjusting the shin vertically is provided. .Also means is providedfor adjusting the said shin verticallj7 with relation to the lever. Theknee member 2O is provided with. a horizontal groove 32 for thereception of the plow-beam 33. The said member 20 is also provided withthe upwardly and forwardly extending portions 34, to the forward upperend of which is pivoted the links The link 36 is pivoted between thelower ends of the links 35 and .at its lower end is pivoted between thelugs 37, provided at the rear of the knee member 19, The rod 3S ispivoted at its forward end between the links 35 and passes through aperforation 39, provided in the part 34. The coil-spring 40 surroundsthe rear portion of the rod 38 and is interposed between the adjustablenut lll and the rear side of the portion 34. The link-adjusting pin isscrew-'threaded in the block 42, which is secured between the links 35.The pin 43 is provided with the tap-head 44 and the jam-nut 45. Theinner end of the pin 13 bears against the forward edge of the portion34. By adjusting the pin 43 longitudinally itis obvious that the angleof inclination of the links 35 with relation to the link 36 may beadjusted, and also by adjusting the nut 4] upon the rod 38 the tensionof the coil-spring 40 may be regulated.

Having described my invention, what l claim as new, and desire to secureby Letters Patent, is

1. A cultivator-standard comprising knee members jointed together, aspring exerting its tension upon said members to maintain the same inextended positions, a shin slidably located upon one of the knee membersand a lever fulcrumed upon said knee member and engaging said shin.

2. A cultivator-standard comprising knee members jointed together, aspring exerting its tension up on said knee member to maintain the samein extended positions, a shin slidably mounted upon one of the kneemembers, a lever fulcrumed to the said knee member and engaging saidshin and means for adjusting the shin vertically with relation to thelever.

3. A cultivator-standard comprising knee members ointed together, aspring exerting its tension upon said members to maintain the same inextended positions, one of said members having a vertical slot, a shinslid- A ably located in said slot, a plate having an opening whichregisters with said slot and gear-teeth, a lever fulcrumed to said plateand having a spring-actuated pawl for engaging the gear-teeth, saidlever also having a lateral projection operating in the opening of theplate and a pin passing through said projection and the shin.

4. A cultivatonstandard comprising knee n members jointed together, aspring exerting its tension upon said members to maintain the same inextended positions, a shin attached to one of the knee members, a foothaving a bifureated end which receives said shin, the bifurcations ofthe foot having` arcuate slots, a bolt passing through said slots and aregistering perforation in the shin, a wedge-shaped block locatedbetween the foot bifurcations and having an elongated slot and bearingat its edge against the edge of the shin and a bolt passing through thefoot bifurcations and the elongated slot of the wedge-shaped block.

5. A cultivatonstandard comprising knee members jointed together, aspring exerting its tension upon said members to maintain the same inextended positions, a shin carried by one of the members, a bifurcatedfoot receiving the lower end. of the shin, the

bifurcations of the said foot having arcuate slots, a bolt passingthrough said slots and a registering perforation in the shin, awedgeshaped block located between the bifurcations of the foot andhaving an elongated slot and bearing at its edge against the edge ef theshin, said block being of greater transverse thickness than the shin anda bolt passing through the bifurcations and the elongated slot of saidblock.

In testimony that I claim the foregoing as my own l have hereto atlixedmy signature in the presence of two witnesses.

JOHN ELIJAH Bflllllllili. lVitnesses VILLIAM F. BANE, Tnoivnxs J. Swnu.

